TH400, Transmissions
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TH400, Transmissions

Unspecified In stock · Ships from Ohio
$100.00 USD · free U.S. shipping over $1500

Ready to upgrade your ride? Buy your TH400 transmission today from Spoon Parts USA and experience unparalleled performance. Order now and get fast shipping directly to your garage or shop.

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Product details

Unleash Performance: The TH400 Transmission at Spoon Parts USA

Welcome to Spoon Parts USA, your premier destination for high-quality TH400 transmissions and related drivetrain components. The TH400 (Turbo-Hydramatic 400) is legendary among automotive enthusiasts for its incredible strength, durability, and versatility. Originally designed for heavy-duty applications in cars, trucks, and even military vehicles, this three-speed automatic transmission has earned its reputation as a workhorse capable of handling immense power. Whether you’re building a high-performance street machine, a hardcore drag racer, or a robust off-road vehicle, a properly built TH400 is often the transmission of choice. We understand the critical role your transmission plays in your vehicle’s performance, and we are committed to providing top-tier TH400 units and parts to meet your demanding needs.

Key Features & Specifications of the TH400

The TH400’s enduring popularity stems from its robust design and ability to withstand extreme conditions. Here are some of its core features:

  • Heavy-Duty Construction: Built with a strong cast iron case and robust internal components, ensuring longevity and reliability under stress.
  • Three Forward Speeds: Provides a good balance of acceleration and highway cruising.
  • Hydraulic Operation: Known for smooth, consistent shifts.
  • High Torque Capacity: Designed to handle high horsepower and torque applications, making it ideal for modified engines.
  • Wide Aftermarket Support: An extensive range of aftermarket parts, upgrade kits, and rebuild components are available, allowing for endless customization and performance enhancements.
  • Excellent for Performance Builds: Frequently chosen for street rods, muscle cars, 4x4s, and drag racing due to its inherent strength.

When you’re pushing the limits with a powerful engine, like the combination found in our SportMonster TH400 Transmission & Chevy 383 Engine Powertrain Package, having a TH400 is almost a necessity. Its reputation for reliability in high-horsepower applications is unmatched.

Applications and Fitment

The TH400 was used in a vast array of General Motors vehicles from the mid-1960s to the late 1990s, including:

  • Chevrolet: Camaro, Chevelle, Corvette, Impala, trucks (C/K series)
  • Pontiac: GTO, Firebird, Trans Am
  • Buick: Riviera, Skylark, Grand National
  • Oldsmobile: 442, Cutlass
  • Cadillac: Eldorado, Deville

Beyond its original applications, the TH400 is an extremely popular swap for custom builds, hot rods, off-road vehicles, and classic car restorations, often replacing weaker transmissions. Its adaptability means it can be paired with a multitude of engines with the correct bellhousing and adapter plates. If you’re building a complete powertrain, considering a package like our SportMonster TH400 Transmission & Chevy 383 Engine Powertrain Package can simplify your project and ensure compatibility.

Installation Notes & Tips

While the TH400 is a robust unit, proper installation is key to its performance and longevity. We recommend consulting a professional mechanic for transmission installation, especially for complex swaps or high-performance builds. Key considerations include:

  • Torque Converter Selection: Matching the correct torque converter to your engine’s power band and vehicle’s intended use is crucial for optimal performance.
  • Fluid Type and Level: Use the recommended transmission fluid and ensure it is filled to the correct level.
  • Cooling: An external transmission cooler is highly recommended, especially for performance or heavy-duty applications, to prevent overheating.
  • Driveshaft Length: Aftermarket TH400 installations often require custom driveshaft modifications.
  • Crossmember: A new or modified transmission crossmember may be needed depending on your vehicle.

Ignoring these details can lead to premature failure. Invest in quality components and professional installation if you’re unsure.

Unspecified Condition: Your Custom Build Opportunity

The ‘Unspecified’ condition for this TH400 opens up a world of possibilities for your project. This designation allows you to select a unit that might be a core for a full rebuild, a used unit needing attention, or a unit ready for specific performance modifications tailored to your exact requirements. We provide options that empower you to decide the level of refurbishment or customization needed. This flexibility is perfect for builders who want to control every aspect of their drivetrain, ensuring it perfectly matches their vision and performance goals. We encourage you to contact us for specific details on ‘unspecified’ units to ensure it meets your expectations for your build.

Quality & Warranty at Spoon Parts USA

At Spoon Parts USA, we stand behind the quality of every part we sell. While this particular listing is for an ‘Unspecified’ condition product, allowing for various states, for all our remanufactured and new products, we ensure rigorous testing and quality control. We understand that purchasing a transmission is a significant investment, and your peace of mind is paramount. We offer competitive warranties on many of our products, giving you confidence in your purchase. Always check the specific warranty details for the product you are interested in. Your satisfaction is our priority.

Why Choose Spoon Parts USA for Your TH400?

When you’re looking to buy a TH400 transmission or related parts, Spoon Parts USA is your trusted partner. We pride ourselves on:

  • Expertise: Our team has extensive knowledge of transmissions, transfer cases, and drivetrain components.
  • Selection: We offer a wide range of parts to suit various budgets and performance needs.
  • Competitive Pricing: Get premium parts without breaking the bank. Our commitment is to provide excellent value.
  • Exceptional Customer Service: From initial inquiry to post-purchase support, our team is here to assist you every step of the way.
  • Fast Shipping: We understand you want your parts quickly. We strive to process and ship orders efficiently. Speedway Motors offers free shipping over $199, and we aim to provide similar value.
  • Trust and Reliability: Buy with confidence from a company dedicated to quality and customer satisfaction. While some sites, like monstertransmission.com is blocked for various reasons, Spoon Parts USA remains a reliable source for your automotive needs.

Don’t settle for less when it comes to your vehicle’s performance. Invest in a high-quality TH400 from Spoon Parts USA and experience the difference.

Frequently Asked Questions (FAQ)

Q: What’s the main advantage of a TH400 over a TH350?

A: The TH400 is significantly stronger and built for much higher horsepower and torque loads than the TH350, making it the preferred choice for performance and heavy-duty applications. It also typically has a stronger output shaft.

Q: Can a TH400 be adapted to a modern engine?

A: Yes, with the right adapter plates and torque converter, a TH400 can be successfully mated to a wide range of modern engines, including LS series engines, due to its robust nature and vast aftermarket support.

Q: What maintenance does a TH400 require?

A: Regular fluid and filter changes are essential. For performance applications, it’s also crucial to monitor fluid temperatures, ensuring your cooling system is adequate to prevent overheating and prolong transmission life.

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